It seems the snake’s head in question was not cooked, according to restaurant officials.

“It has been concluded that the snake’s head was placed in the food at some point after the cooking process,” T.G.I. Friday’s said in a statement.

Spokeswoman Amy Freshwater said the eatery did not know who was involved in the “senseless act of product tampering” but said the restaurant would cooperate with authorities to help prosecute the guilty party to the “fullest extent of the law.”